Task type: architecture review

Read:
- AGENTS.md
- docs/ai/bevy-quick-reference.md
- docs/ai/bevy-project-patterns.md
- ai/context/project-context.md

Then:
- identify top 3 strengths
- identify top 5 risks
- call out ECS smells
- suggest plugin split
- suggest resources/events/states to add or remove
- keep advice concrete and patchable
- keep Bevy 0.18.1 APIs only